Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {27, 21, 2, 12, 5, 11} → ______
- Prime numbers in {23, 15, 19, 8, 11, 13} → ______
- Prime numbers in {29, 12, 13, 11, 7, 2} → ______
- Prime numbers in {23, 27, 29, 9, 5, 21} → ______
- Prime numbers in {21, 25, 23, 17, 9, 19} → ______
- Prime numbers in {13, 23, 9, 21, 11, 3} → ______
- Prime numbers in {25, 2, 17, 19, 11, 9} → ______
- Prime numbers in {3, 13, 29, 17, 21, 9} → ______
- Prime numbers in {19, 12, 25, 3, 9, 5} → ______
- Prime numbers in {13, 29, 3, 21, 23, 15} → ______
- Prime numbers in {9, 21, 17, 13, 29, 27} → ______
- Prime numbers in {27, 3, 25, 13, 21, 15} → ______
- Prime numbers in {15, 19, 12, 17, 25, 27} → ______
- Prime numbers in {5, 7, 19, 17, 8, 25} → ______
- Prime numbers in {11, 29, 25, 5, 9, 12} → ______
- Prime numbers in {27, 29, 25, 7, 12, 17} → ______
- Prime numbers in {7, 9, 2, 11, 8, 3} → ______
- Prime numbers in {13, 29, 8, 2, 25, 27} → ______
- Prime numbers in {12, 21, 8, 17, 27, 11} → ______
- Prime numbers in {8, 23, 2, 5, 29, 21} → ______